non-return-to-zero mark recording; NRZ-M; NRZ-1
A magnetic recording encoding method where a change in magnetization represents a one, and no change represents a zero. Used in early magnetic tape and disk storage. Technical term; primarily encountered in computing and data storage contexts.
Non-return-to-zero mark recording is one of the data recording methods for magnetic tape.
Non-return-to-zero recording (NRZ) is a broader category; NRZ-M specifically uses mark (change-on-ones) encoding.
A direct translation of the English technical term 'non-return-to-zero mark recording', combining 非ゼロ (non-zero), 復帰 (return), マーク (mark), and 記録 (recording).